CurrentContainerID not fetched

[kaiokenx10]

Hi,

I noticed that on the latest multicontainer docker env on AWS with ecs agent in version 1.17.2 the container id is empty and this ends up in empty upstream blocks for my nginx config in nginx-proxy container which uses docker-gen. Starting from ecs agent 1.16 the letsencrypt comapanion was not able to get its own container id, so it started supporting the ECS_CONTAINER_METADATA_FILE variable which holds the containerID in very simply way (it is a JSON file). My question is why similar approach can not be used here instead of attempts of doing the regexp matching on the /proc/self/cgroup? We could simply check if ECS_CONTAINER_METADATA_FILE is defined and use it for fetching "ContainerID".

[jwilder]

Sure. We could do that.

[buchdag]

This should have been fixed by #336 and #345